T3

Brand: SRAM

Three-speed internal gear hub from the Sachs Torpedo (Fichtel & Sachs) line, sold under the names Torpedo Dreigang / Spectro T3 and then SRAM T3 after SRAM bought Sachs in 1997. It is the historic core from which the whole internal-gear-hub range rebadged and developed by SRAM descends. Planetary gear train with a range of about 187% (36% steps), steel shell of about 1200 g, with an integrated coaster brake. Some late versions add a 'brake booster' function that shifts down to 3rd under braking. Produced from ~1977 into the 2000s. Approximate years.